I have a kicker cvr 12 inch 2 ohm dual voice coil sub (400 watts) and a kicker zx750 amp. how to wire?
MDC is correct. You need to remember anything that is run (+) to (+) and (-) to (-) is parallel. When you run this with one dual voice coil sub, or two subs together, and then bridge it at the amp in mono, you are actually supplying a higher percentage of power from the amp, and the amp will see an ohm load that it may not be able to handle, which will cause thermal overload and shut the amp down when it gets too hot. Running in series will bridge the ohm load up. In your case your 2ohms that you run in series will double your ohm load. Increasing it to 4ohms, and when you bridge it mono at the amp, the amp will see around a 2ohm load in mono. Good luck!
if you wire that sub at 2 ohm you might supply too much power and make it jump out of the basket. i would wire it at 4 ohm and allow it to get just enough power. a + on the sub to a + on the amp and on the same voice coil the - to the - on the amp and connect the + and - on the other voice coil together
the present passing interior the process the wires will reason the wires to warmth up if no longer adequate guage. think of of the tens of millions of little electrons pushing and shoving to and fro, all this action motives friction on a molecular point and of course all of us comprehend friction equals warmth. In an even bigger guage cord there is extra area for the comparable variety of electons. that is rather that straightforward. Use as heavy a guage speaker cord which you would be able to. you will haven't any sign loss and little warmth.
wire it in series so you get a 4ohm load. not unless you could still return the sub and get the cvr with dual 4ohm voicecoils. then you can wire that in parallel to 2ohms and get the most out of your amp.